Abstract: A tool for forming a wire clamp includes a tube having its forward end somewhat flattened and grooved, and a pulling screw is slidable in the tube with a roll pin projecting through the slots and pullable by a wing nut screwed thereon. A waterproof cable splice includes flanged elastomer grommets projecting into a plastic sleeve and pressed on insulating jackets of two cables having conductors connected by a crimped conductive sleeve. Hose type clamps compress the end portions of the plastic sleeve to seal them to the grommets and to compress the grommets onto the jackets to seal them thereto.